Hasan Ali and debutant Mohammad Wasim impress for Pakistan with the ball.
WI flounder with the bat again; Ashton Agar was impressive on his return while Mitchell Starc claimed another three wickets
Australia slumped to 45 for 6 with Akeal Hosein taking three quick wickets.
The case was confirmed minutes before the opening delivery.
Australia has started their ODI campaign against West Indies with a bang, beating the hosts by 133 runs via the DLS method.
Apower-packed innings from Evin Lewis proved the backbone of a 16-run victory for West Indies in the fifth and final T20I against Australia.